| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 3 |
1.6%
|
|
| 3 | 1 |
0.5%
|
|
| 4 | 5 |
2.6%
|
|
| 5 | 18 |
9.4%
|
|
| 6 | 76 |
39.6%
|
|
| 7 | 49 |
25.5%
|
|
| 8 | 22 |
11.5%
|
|
| 9 | 13 |
6.8%
|
|
| 10 | Very effective | 5 |
2.6%
|
| 11 | Don't know | 6 | |
| Sysmiss | 5 |